SPOR-GO is a uniquely stabilized specialty oxidant, combined with the essential oil of Australian Tea Tree which is considered nature’s most powerful fungicide, germicide and deodorizer. Australian Tea Tree Oil is 100% natural and environmentally safe. There are many liquid cleaners on the market that clean mold and mildew, but the results are only temporary, the mold and mildew soon reappear. In the case of chlorine bleach, there are health and odor issues. That’s why the US EPA and other authorities recommend against using chlorine cleaners. SPOR-GO is safe for use in schools, hospitals, nursing homes, office buildings, hotels, commercial and industrial institutions, airports and households. Contains: 1 gallon